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Context

Struct Context 

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pub struct Context {
    pub hardware: HardwareState,
    pub mode: EngineMode,
    pub global_budget_multiplier: f32,
    pub memory_pressure: f32,
}
Expand description

The complete context model used for strategic decision making.

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§hardware: HardwareState

Observed hardware state.

§mode: EngineMode

Current engine mode.

§global_budget_multiplier: f32

Global budget multiplier applied to all frame budgets for graceful performance degradation. Ranges from 0.0 (emergency) to 1.0 (full performance).

Driven by the DCC’s frame-time PID controller (khora_core::control::pid), not a static table: the loop asservits this value so the measured frame time tracks the heuristic-suggested latency (AnalysisReport::suggested_latency_ms, itself modulated by thermal/battery/phase). On Critical thermal/battery or high memory pressure the DCC additionally clamps it to a hard safety ceiling.

§memory_pressure: f32

System-memory pressure in [0, 1]current_ram_bytes / memory_budget_bytes, or 0.0 when the budget is unset. A first-class resource signal alongside thermal/CPU/GPU: drives graceful degradation here and feeds the AGDF repack-headroom gate (a repack transiently doubles a column, so it is declined under high pressure).

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impl Context

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pub fn refresh_memory_pressure(&mut self)

Recomputes Context::memory_pressure from the current RAM usage versus the developer-set budget.

Pressure is current_ram_bytes / memory_budget_bytes, clamped to [0, 1]. An unset budget yields 0.0 (the signal is inert). This is a first-class resource signal consumed by the heuristic engine and the AGDF repack gate; it no longer feeds the budget multiplier directly — that is the PID loop’s job — but it does drive the DCC’s hard safety clamp (see safety_ceiling).

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impl Clone for Context

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fn clone(&self) -> Context

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Context

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for Context

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> AppLifecycle for T
where T: ?Sized,

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fn on_start(&mut self, ctx: &mut dyn AppContext)

Called once after the backend is up but before the first update. Apps install their theme / fonts here.
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fn on_exit(&mut self)

Called once when the window is closing. Persist state here.
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impl<T> AsAny for T
where T: Any,

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fn as_any(&self) -> &(dyn Any + 'static)

Returns a reference to the inner value as &dyn Any.
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.